CVE-2020-1733
lowPriorität · verfolgen · 20EPSS 0.004 · 34. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 3.7–5
schwächen
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betroffene Produkte (48)
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Advisories (3)
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- WID-SEC-W-2023-2479Ansible: Schwachstelle ermöglicht Unsicheres Erzeugen von temporären DateienDeutsch2020-03-11csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Ansible ausnutzen, um temporäre Dateien zu erzeugen.
- GHSA-g4mq-6fp5-qwcfAnsible vulnerable to Exposure of Resource to Wrong Sphere and Insecure Temporary File2021-04-20ghsa · osvUS
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.
- PYSEC-2020-52020-03-11vendor · osvUS
A race condition flaw was found in Ansible Engine 2.7.17 and prior, 2.8.9 and prior, 2.9.6 and prior when running a playbook with an unprivileged become user. When Ansible needs to run a module with become user, the temporary directory is created in /var/tmp. This directory is created with "umask 77 && mkdir -p <dir>"; this operation does not fail if the directory already exists and is owned by another user. An attacker could take advantage to gain control of the become user as the target directory can be retrieved by iterating '/proc/<pid>/cmdline'.
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Referenzen (33)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2020-1733cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1733cnnvd
- https://github.com/ansible/ansible/issues/67791cnnvd
- https://lists.debian.org/debian-lts-announce/2020/05/msg00005.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DKPA4KC3OJSUFASUYMG66HKJE7ADNGFW/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MRRYUU5ZBLPBXCYG6CFP35D64NP2UB2S/cnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQVOQD4VAIXXTVQAJKTN7NUGTJFE2PCB/cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-1733cnnvd
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